2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care GHK Cu (copper peptide)based shampoo & conditioner Started: December 8, 2025 Follow up photo: January 8, 2026 Measured under the same conditions using a tape measure, this shows approximately ~1 inch of length change 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care Amazon.com: Copper Peptide Shampoo Anti Hair Loss Shampoo Promotes New Hair Growth : Beauty & Personal Care Hair Loss & Peptides: Why Blends Work Better When it comes to hair restoration, one peptide is goodstrategic blends are better. MOTS c A mitochondrial peptide that improves cellular energy, reduces oxidative